Thetford Aria Classic RV Toilet Exploded Parts Diagram

The Aria Classic has a pedal-operated flush and ceramic bowl. Thetford's original illustration identifies its lower manual mechanism, return spring, water valve, blade seal and cable independently so a pedal or bowl-seal problem can be traced to the correct component.

Original Thetford Aria Classic RV Toilet Exploded Parts Diagram

Use the callout numbers in this manufacturer's exploded view to identify the component in the table below. The PDF opens at full size for closer viewing.

View the original diagram

Open the PDF to zoom in on numbered components.

Open original Thetford parts diagram (PDF)

Numbered components and service references

The parts list follows Thetford's model-specific drawing. Links are provided only when a current NewRVParts listing matches the stated original part number.

Callout Part no. Component Listing
1 33385 Bone seat and cover
1 33384 White seat and cover View exact-number listing
2 T-PF.P135 Bone nozzle, requires clear silicone sealant
2 36747* Earlier bone nozzle, superseded by T-PF.P135
2 T-PF.P134 White nozzle, requires clear silicone sealant
2 T-PF.P03/B* Earlier white nozzle, superseded by T-PF.P134
2 36746 Older white nozzle, subsequently superseded
3 19831 Water valve
4 19832 Water-valve return spring
5 19629 Spacer kit
6 19834 Manual-flush mechanism
7 19833 Flush-blade seal
8 19835* Pedal cable, high-profile
8 19836 Pedal cable, low-profile
9 19838 Bone pedal kit
9 19837 White pedal kit
10 19829 Bone hole plug
10 19828 White hole plug
Not shown 19830 Vacuum breaker
Not shown 19618 Mounting-bolt kit
Not shown 28926 Bone bolt caps
Not shown 28927 White bolt caps
Not shown 19696 Bulk 1/8-inch spacers
Not shown 19697* Bulk 3/8-inch spacers

In the manufacturer's PDF, shaded items may be unavailable and asterisks mark limited availability. Those source markings do not state NewRVParts inventory.

Replacement parts and product photos

The white seat-and-cover assembly 33384 is a numbered part in the drawing. The additional chrome hand-sprayer listing is a related manufacturer-documented water-saver accessory, not a numbered callout here.

Thetford 50219 White Aria RV Toilet Seat & Cover — catalog product image
Thetford 50219 White Aria RV Toilet Seat & CoverManufacturer-number-matched product listing; confirm options and contents on the product page.
Thetford 50024 Chrome RV Toilet Hand Sprayer Kit — catalog product image
Thetford 50024 Chrome RV Toilet Hand Sprayer KitRelated accessory — not a diagram callout; confirm options and contents on the product page.

Check the model before ordering

Compare whether the toilet is high- or low-profile before identifying the foot-pedal cable: callout 8 lists 19835 for high and 19836 for low. The flush nozzle has newer white and bone replacement numbers, not just the original 36746 and 36747 labels.

Turn off the water supply and disconnect electrical power as applicable before servicing. Follow the instructions for your exact model and replacement kit.

See the Thetford RV toilet diagram index for more model references.

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